Correlation analysis of bearing track using grey system theory. - Yeqing Guan; Dejin Song (Kybernetes, 2012)

Quantitative analysis of the cities' innovation capacity based on grey variable weight clustering. - Yeqing Guan; Hua Liu; Ying Zhu; Song Ding (SMC, 2014)

Quantitative analysis of the cities' innovation capacity based on grey variable weight clustering. - Yeqing Guan; Hua Liu; Ying Zhu (Grey Syst. Theory Appl., 2015)